What are energy sublevels? (A)multiple energy levels of any magnitude within an energy level
(B)multiple orbitals of specific magnitude within an energy level
(C)only those energy levels that overlap others
(D)electrons whose energy has dropped to a lower state

Answers

Answer 1

Answer:

Answer:

Option B

Explanation:

First, we need to know what is an energy level.

An energy level corresponds to the row of the periodic table of element. So, if you see the attached picture, you can see that we have 7 rows where the elements are distributed, so, we have 7 energy levels for all those elements.

Knowing that, the sub levels are the caps where the electrons of the atoms are carried. These sublevels or caps, are called orbitals, these can be of several types

s orbytal: can hold 2 electrons

p orbytal: can hold up to 6 electrons.

d orbytal: can hold up to 10 electrons

f orbytal: can hold up to 14 electrons

g orbytal: can hold up to 18 electrons.

Depending on the row (or energy level) and the atom, we can know how many electrons can carry an element, in which period or row is, and the sub levels. For example, the Chlorine, with an atomic number of 17, can carry up to 7 electrons in it's outer level and it's on the third row (two energy levels). This can be known with it's electronic configuration:

[Cl] = 1s^2 2s^2 2p^6 3s^2 3p^5

The last energy level is 3, so it's the third period, and the electrons of those sub level are 2 and 5, 7 electrons.

Hope this can help better

Answer 2

Answer: The answer is B: multiple orbitals of specific magnitude within an energy level

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How could using ethanol as a fuel affect the carbon dioxide level in the atmosphere is this good or bad for the environment PLEASE HELP ME, IT'S FOR MY NATIONAL 5 ASSIGNMENT

Answers

hey there you see ethonol i beliive is a corn based fuel and scientists are saying that it is more healthy for are invirment but not 100% green.however this fuel is not a renewable resource it is still widely abundent because we have corn felids. but i think it is not the smartest investment because if we have a big storm or cropos wont grow anymor than we would not have cars therfore limiting transportationn which setting a huge deppresion. gkad you asked i hads something simmilar to this on my ssvec assignment

State one conclusion from Rutherford experiment that contradicted one conclusion made by Thompson

Answers

One conclusion from Rutherford's experiment that greatly contradicted Thompson's experiment is that 'atoms are mostly empty space, with positively charged nucleus'. While Thompson concluded that there are negatively charged particles as part of the internal structure of the atoms.

Answer:

One conclusion from Rutherford's experiment that greatly contradicted Thompson's experiment is that 'atoms are mostly empty space, with positively charged nucleus'.

Explanation:

Can you help answer #10 please?

Answers

Just like in algebra, coefficients are before the variable, in chemistry it's before the element name/letters. So in 2Al, 2 is the coefficient.

Subscripts are the small numbers (sub) that you see after the element letters. In H2, the subscript is 2.

The liquids hexane and water are placed in a test tube. The test tube is stoppered, shaken, and placed in a test tube rack. The liquids separateinto two distinct layers because hexane and water have different
(1) formula masses
(2) molecular polarities
(3) pH values
(4) specific heats

Answers

Answer: option 2. molecular polarities

Explanation:

The liquids hexane and water are placed in a test tube. The test tube is stoppered, shaken, and placed in a test tube rack. The liquids separate into two distinct layers because hexane and water have different molecular polarities. The answer is number 2.

Note from the formulas of the reactants that one is an acid and one is a base. The precipitate formed is therefore a salt. What is the balanced formula for this salt?1. OH
2. Ba2SO4
3. BaSO4
4. Ba(SO4)2

Answers

BaSO4 is the answer for this question i did the math

Answer:

3. BaSO4

Explanation:

the math will show you, and to answer your commented question "How does this evidence indicate that the reaction has occurred between ions ?" :

The reaction of the ions can be checked by a number of methods. In a chemical reaction, the ions are in the aqueous solution. This means that they are in solution, dissolved with charge. During the reaction (ionic) there is an attraction between the positive and negative ions. This makes a change in the state of the reactants in the products. In addition, the reaction can result in an immediate observable change such as the formation of a solid or precipitation.

Gabriella weighs 450 N. She climbs a flight of stairs to a height of 3 m. It takes her 5 seconds. How much work does Gabriella do when she climbs the stairs?A.
150 J

B.
270 J

C.
1350 J

D.
2250 J

Answers

The formula that can be applied in this problem is W = Fd where W is work, F is the force and d is distance. You have 450N and 3m, all you have to do is to multiply it.

W = Fd

W = (450N) (3m)

W = 1350J

The answer is letter C.

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